短文改错

假如英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文，文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加，删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1．每处错误及其修改均仅限一词；2．只允许修改10处，多者（从第11处起）不计分。

Dear Editor,

    I used to be a physician in the children's department of a hospital. From time to time I treated children who had poisoned by medicine with older family members. The children didn't know the medicine was danger; they just knew it tasted sweet. Children easily open the bottle what we now use in China.

    Some days before I talked about medicines with an American. He showed me a sort of plastic bottle. The design was quite simple and I'm sure our Chinese factories could produce these bottles. The top of the bottle can be opened by pressing down on them while turning, which is difficult for most young children to do so, though grown-up can open these bottles very easily.

    I'm certainly that the expense of making such tops would be very small. As a doctor, I'd love to see this doing. And most parents would be grateful.

Sincerely yours

Li Hua

我国地势呈阶梯状分布，总趋势是（    ）

假设你叫林洋，收到了你的笔友Susan的一封信，请你给她写一封回信。在信中回答她的问题，提出你的建议，并就此事谈谈你的看法。
Dear Lin Yang,
I have a problem these days. My mother doesn’t allow me to watch TV even on weekends. She says as a middle school student, my job is to study. After I finish my homework, she says, I should read books and watching TV is bad for me. But I think I need a rest and watching TV helps me learn a lot too.
Do you have the same problem? What do you think of my mother’s decision? What should I do?
Yours,
Susan

下面漫画中的人物拒绝酒后驾驶

①是一种对自己和他人生命健康负责的行为 ② 体现了他具有很强的法律意识　③是不近人情的表现　④是值得提倡的行为

胰岛素和胰高血糖素是人体内血糖调节的重要激素．回答下列相关问题：

（1）胰岛素和胰高血糖素分别由____ 细胞和____ 细胞分泌．

（2）胰岛素的作用是促进组织细胞____ ，从而降低血糖浓度．胰高血糖素的作用是能促进____ ，从而使血糖浓度升高．

（3）胰岛素和胰高血糖素的作用结果表现为____ ，共同维持血糖含量的相对稳定．

（4）进食一段时间后，血糖浓度升高，刺激胰岛素分泌增加，胰高血糖素分泌减少，调节血糖浓度下降，下降的血糖浓度则引起胰岛素分泌减少，胰高血糖素分泌增加．这种激素分泌的调节方式叫做____ ．